When you surprise a "friend" sitting on the couch by hiding in the near by closet with your male friends masturbating. once you and your friends reach they're peaks they run out and surprise them by "blowing they're loads" all over the unsuspecting victim on the couch creating a sprinkler effect.
I wanted to brake up with my girl friend so I had my friends from work pull a Bucocky Sprinkler on her.
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